The roles of mycorrhizal fungi in terrestrial ecosysytems
菌根真菌在陆地生态系统中的作用

I discussed the roles that mycorrhizal fungi play in terrestrial ecosystems. They form mutualistic association with plants, retain nutrient elements and water in the soil, supply foods for animals,affect the succesion of community and the composition of flora, regulate the integration of the resources and sustain species diversity of ecosystems.